$79+ Flights from San Francisco to Denver

One-way flight from San Francisco to Denver Intl

Highest demand for flights based on searches. 11% potential increase in price ($29 potential increase over avg. RT price).

Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).

Average for round-trip flights in June 2025

Price to beat on a round-trip flight from San Francisco to Denver Intl.

Price to beat on a one-way flight from San Francisco to Denver Intl.

Find flight deals from San Francisco to Denver

Cheapest flights from San Francisco to Denver
Explore the most affordable flight options available from San Francisco to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Sat 9/69:59 pmSFO - DEN

1 stop15h 00mFrontier

Mon 9/86:00 amDEN - SFO

Nonstop2h 46mFrontier

Deal found 6/9

$136

Sat 10/185:05 amSFO - DEN

Nonstop2h 35mUnited Airlines

Thu 10/236:03 amDEN - SFO

Nonstop2h 42mUnited Airlines

Deal found 6/12

$157

Sat 8/95:15 amSFO - DEN

Nonstop2h 25mSouthwest

Mon 8/117:45 amDEN - SFO

Nonstop2h 40mSouthwest

Deal found 6/10

$167

Wed 8/205:50 amSFO - DEN

1 stop4h 40mAmerican Airlines

Sat 8/237:18 amDEN - SFO

1 stop6h 48mAmerican Airlines

Deal found 6/12

$182

Sat 7/121:20 pmSFO - DEN

1 stop5h 09mDelta

Wed 7/166:15 amDEN - SFO

1 stop6h 17mDelta

Deal found 6/10

$217

Tue 10/143:51 pmSFO - DEN

2 stops21h 09mAlaska Airlines

Sat 10/187:01 amDEN - SFO

1 stop8h 00mAlaska Airlines

Deal found 6/10

$225

Best flights from San Francisco to Denver
Discover carefully curated flight deals from San Francisco to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Sat 9/69:59 pmSFO - DEN

1 stop15h 00mFrontier

Mon 9/86:00 amDEN - SFO

Nonstop2h 46mFrontier

Deal found 6/9

$136

Sat 8/95:15 amSFO - DEN

Nonstop2h 25mSouthwest

Mon 8/117:45 amDEN - SFO

Nonstop2h 40mSouthwest

Deal found 6/10

$167

Wed 8/209:12 amSFO - DEN

1 stop7h 17mAmerican Airlines

Mon 8/2511:59 amDEN - SFO

1 stop7h 55mAmerican Airlines

Deal found 6/12

$180

Fri 8/296:42 pmSFO - DEN

Nonstop2h 36mUnited Airlines

Mon 9/16:08 amDEN - SFO

Nonstop2h 42mUnited Airlines

Deal found 6/12

$197

Sat 7/121:20 pmSFO - DEN

1 stop5h 09mDelta

Wed 7/166:15 amDEN - SFO

1 stop6h 17mDelta

Deal found 6/10

$217

Last-minute flights from San Francisco to Denver
Discover last-minute flight deals from San Francisco to Denver. Data last updated June 12, 2025 and is based on user searches.

Tue 6/173:23 pmSFO - DEN

1 stop5h 19mAmerican Airlines

Tue 7/156:07 pmDEN - SFO

1 stop5h 30mAmerican Airlines

Deal found 6/11

$277

Tue 6/177:05 pmSFO - DEN

Nonstop2h 36mUnited Airlines

Wed 6/1810:10 amDEN - SFO

Nonstop2h 44mUnited Airlines

Deal found 6/10

$337

Tue 6/175:25 amSFO - DEN

1 stop5h 50mSouthwest

Tue 7/155:20 pmDEN - SFO

2 stops7h 05mSouthwest

Deal found 6/11

$340

Thu 6/197:02 pmSFO - DEN

Nonstop2h 41mFrontier

Thu 8/219:45 amDEN - SFO

Nonstop2h 44mFrontier

Deal found 6/12

$193

Thu 6/195:05 pmSFO - DEN

1 stop4h 20mDelta

Sat 7/125:30 amDEN - SFO

1 stop4h 47mDelta

Deal found 6/11

$307

Thu 6/195:45 amSFO - DEN

1 stop5h 38mMultiple Airlines

Thu 8/216:17 pmDEN - SFO

2 stops14h 35mMultiple Airlines

Deal found 6/11

$414

Fri 6/2011:25 amSFO - DEN

1 stop7h 07mAlaska Airlines

Sat 7/126:00 amDEN - SFO

1 stop8h 45mAlaska Airlines

Deal found 6/11

$296

Tue 7/15:00 amSFO - DEN

Nonstop2h 36mUnited Airlines

Sat 7/125:00 amDEN - SFO

Nonstop2h 42mUnited Airlines

Deal found 6/9

$197

Thu 7/106:37 amSFO - DEN

Nonstop2h 40mFrontier

Fri 7/1110:29 pmDEN - SFO

Nonstop2h 50mFrontier

Deal found 6/10

$137

Sat 7/121:20 pmSFO - DEN

1 stop5h 09mDelta

Wed 7/166:15 amDEN - SFO

1 stop6h 17mDelta

Deal found 6/10

$217

Wed 7/303:11 pmSFO - DEN

1 stop5h 31mAmerican Airlines

Wed 8/611:59 amDEN - SFO

1 stop7h 55mAmerican Airlines

Deal found 6/12

$187

Wed 7/305:25 amSFO - DEN

2 stops8h 25mSouthwest

Mon 8/48:05 pmDEN - SFO

1 stop5h 10mSouthwest

Deal found 6/11

$212

One-way flights from San Francisco to Denver
Search for one-way flight options from San Francisco to Denver. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 9/226:30 amSFO - DEN

Nonstop2h 40mUnited Airlines

Deal found 6/10

$79

Tue 10/2111:37 amSFO - DEN

1 stop5h 25mHawaiian Airlines

Deal found 6/10

$82

Mon 8/256:00 amSFO - DEN

1 stop4h 35mSouthwest

Deal found 6/11

$84

Wed 11/52:34 pmSFO - DEN

1 stop8h 25mAlaska Airlines

Deal found 6/12

$88

Sat 10/1812:46 pmSFO - DEN

1 stop8h 00mAmerican Airlines

Deal found 6/12

$93

Mon 7/149:43 pmSFO - DEN

1 stop16h 35mFrontier

Deal found 6/12

$107

Sat 7/51:30 pmSFO - DEN

1 stop4h 58mDelta

Deal found 6/9

$119

Sun 11/2311:59 pmSFO - DEN

1 stop17h 50mSun Country Air

Deal found 6/10

$225

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 9/6

9:59 pm-1:59 pm

1 stop15h 00m

Denver Intl

Mon 9/8

6:00 am-7:46 am

Nonstop2h 46m

$136

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 10/18

5:05 am-8:40 am

Nonstop2h 35m

Denver Intl

Thu 10/23

6:03 am-7:45 am

Nonstop2h 42m

$157

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 8/9

5:15 am-8:40 am

Nonstop2h 25m

Denver Intl

Mon 8/11

7:45 am-9:25 am

Nonstop2h 40m

$167

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 8/20

5:50 am-11:30 am

1 stop4h 40m

Denver Intl

Sat 8/23

7:18 am-1:06 pm

1 stop6h 48m

$182

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 7/12

1:20 pm-7:29 pm

1 stop5h 09m

Denver Intl

Wed 7/16

6:15 am-11:32 am

1 stop6h 17m

$217

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 10/14

3:51 pm-2:00 pm

2 stops21h 09m

Denver Intl

Sat 10/18

7:01 am-2:01 pm

1 stop8h 00m

$225

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 9/22

6:30 am-10:10 am

Nonstop2h 40m

$79

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 10/21

11:37 am-6:02 pm

1 stop5h 25m

$82

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 8/25

6:00 am-11:35 am

1 stop4h 35m

$84

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 11/5

2:34 pm-11:59 pm

1 stop8h 25m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 results

The best insider tips for San Francisco to Denver flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Denver trip

Airlines

Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for added comfort.

Early morning flights have a better chance of on-time departure and arrival.

Read more about Frontierby Marisa Garcia

United Airlines

Basic Economy allows a personal item only; no carry-on bags unless you're a MileagePlus member.

Economy Plus offers extra legroom seats at the front of the economy cabin for MileagePlus members.

Read more about United Airlinesby Harriet Baskas

Airports

SFO

Save time by using the SFO2Go program to order meals for pickup during busy times.

DEN

Take the A Line train from DEN to Union Station for a quick, 37-minute ride into downtown Denver.

Our travel experts

Marisa Garcia

Expert on Frontier

Harriet Baskas

Expert on United Airlines and SFO

Emily Zemler

Expert on DEN

Best time to book a flight from San Francisco to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from San Francisco with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Denver

How far ahead should I book a flight from San Francisco to Denver?

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 24 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to Denver?

Currently, October is the cheapest month in which you can book a flight from San Francisco to Denver (average of $197). Flying from San Francisco to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to DEN?

One of the essential ways to save on airfare from San Francisco to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.

What is the cheapest day to fly from San Francisco to Denver?

Travelers seeking maximum savings on their San Francisco to Denver flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Denver

The most flights from SFO to DEN are scheduled on a Thursday (61 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).

Rainfall in Denver by month

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Francisco to Denver have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.0

Very good

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

8.0

Very good

8.0

Very good

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,287 reviews

8.0

Very good

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,946 reviews

8.0

Very good

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

8.0

Very good

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

8.0

Very good